About: http://webisa.webdatacommons.org/110697690

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The base 310 can be constructed from wood, concrete, stone, or other materials that are known in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com